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[SPARK-20386][Spark Core]modify the log info if the block exists on the slave already #17683

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eatoncys wants to merge 10 commits into from
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[SPARK-20386][Spark Core]modify the log info if the block exists on the slave already #17683

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312b90b
PARK-20386
eatoncys Apr 19, 2017
2d95652
modify the style problems and var problem
eatoncys Apr 19, 2017
22ef469
modify the style problems and var problem
eatoncys Apr 19, 2017
c14b1ad
Change removed to updated
eatoncys Apr 19, 2017
b769754
add 'updated' style log info
eatoncys Apr 19, 2017
81e8e84
Delete blank line
eatoncys Apr 19, 2017
567a9ae
Reuse the new values
eatoncys Apr 20, 2017
f7e40b8
Using string interpolation for log info
eatoncys Apr 20, 2017
60ca9e0
Remove the blank line
eatoncys Apr 20, 2017
664dfb8
Modify the blockExists to val and resuse it below
eatoncys Apr 21, 2017
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14 changes: 12 additions & 2 deletions core/src/main/scala/org/apache/spark/storage/BlockManagerMasterEndpoint.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -520,8 +520,18 @@ private[spark] class BlockManagerInfo(
blockStatus = BlockStatus(storageLevel, memSize = memSize, diskSize = 0)
_blocks.put(blockId, blockStatus)
_remainingMem -= memSize
logInfo("Added %s in memory on %s (size: %s, free: %s)".format(
blockId, blockManagerId.hostPort, Utils.bytesToString(memSize),
val originalMemSize = if (_blocks.containsKey(blockId)) {
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@srowen srowen Apr 19, 2017

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I see, it's not a Scala Map or else this could be .getOrElse(..., 0). Now I understand why you pulled out the variable earlier. I actually dont' think this works now because it happens after the new status has been put in the Map. OK, you could go back to what you had.

_blocks.get(blockId).memSize
} else {
0
}
val (addedOrRemoved, size) = if (memSize >= originalMemSize) {
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@srowen srowen Apr 19, 2017

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The difference doesn't need to be conditional. You can use math.abs

("Added", memSize - originalMemSize)
} else {
("Removed", originalMemSize - memSize)
}
logInfo("%s %s in memory on %s (size: %s, free: %s)".format(
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@srowen srowen Apr 19, 2017

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Still doesn't use interpolation

addedOrRemoved, blockId, blockManagerId.hostPort, Utils.bytesToString(size),
Utils.bytesToString(_remainingMem)))
}
if (storageLevel.useDisk) {
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@srowen srowen Apr 19, 2017

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Doesn't the disk case need a similar treatment?

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@eatoncys eatoncys Apr 19, 2017

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Ok, I have modified the disk case, and add a "update" style log info, any other suggestions? thank you

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